157344490 has 8 divisors (see below), whose sum is σ = 283220100. Its totient is φ = 62937792.

The previous prime is 157344487. The next prime is 157344521. The reversal of 157344490 is 94443751.

157344490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 148035889 + 9308601 = 12167^2 + 3051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7867215 + ... + 7867234.

Almost surely, 2^157344490 is an apocalyptic number.

157344490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157344490 is a deficient number, since it is larger than the sum of its proper divisors (125875610).

157344490 is a wasteful number, since it uses less digits than its factorization.

157344490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15734456.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 157344490 is about 12543.7032012082. The cubic root of 157344490 is about 539.8633513403.

The spelling of 157344490 in words is "one hundred fifty-seven million, three hundred forty-four thousand, four hundred ninety".